Means for changing the tracks of tramways or railways having movable rails.



No. 762,191 1 PATENTED JUNE 7,1904. 0.- .PAGINI. MEANS, FOR CHANGING THE TRACKS 0F TRAMWAYS O'R RAILWAYS HAVING MOVABLE RAILS. APPLICATION FILED JULY 24, mos.

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Patented June 7, 1904.

PATENT OFFICE.

OTTAVIANO PACINI, OF PISTOJ A, ITALY.

MEANS FOR CHANGING THE TRACKS F TRAMWAYS OR RAILWAYS HAVING MOVABLE RAILS.

SPECIFICATION forming part of Letters Patent No. 762,191, dated June '7, 1904. Application filed July 24, 1903. Serial No. 166,900. (No model.)

To all whom it 711/117 concern:

Be it knownthat LOTTAVIANO PAoINi,of Pistoja,Province of Florence, Italy, have invented certain'new and useful Improvements in Means passage of vehicles into branches of lines of tramways or railways by means of two portions of grooved rails having the same section as that of the track and pivoted on the axis of the main rails. These two portions of rail open out at the movable end to the two branches.

Figure 1 is a perspective view of the rail with its wings. Fig. 2 is a plan View of a change of tracks. Fig. 3 is a section on line A B, Fig. 2. Fig. 4 is a longitudinal section on line C D, Fig. 2.

The movable rail a a is provided with two strong wings b t of a thickness less than that of the rail and connected in an inclined plane with the edge 0 at r and with the mushroom head a at s.

The movable rail 0 is placed in a cast-ironbox (Z, on the bottom 0 of which it is supported. The wings b?) are covered by two strips ff of corrugated sheet-steel, fixed to the edge of the box and which disclose for the movable rail'just the necessary space for the two openings. The inner edges g g of the two sheets are cut in the direction of an inclined plane, so that when the rail is displaced any obstacles which may be situated on the uncovered part of the wings will be caught between the two oblique walls 8 g, r g, which close like the two blades of a pair of shears and will raise and expel them without exercising any pressure against the movable parts. A similar arrangement protects the movable rail against obstacles which may take .up a position in the length of the groove across the point of connection and this on account of the gradual alteration in the profile of the groove of the movable rail as well as of the two connecting-channels toward the open end for two small lengths [L it. (See Fig. 4, which *epresents'a longitudinal section on the line C D.) From this point the edges of the groove are arranged in a gradually-opening V form, as will be seen in Fig. 3, which represents a section of a change of track on the line A B and which shows the profile of the altered channel (letter o) and the normal profile in broken lines, (letter 20.) Any obstacles will be raised and expelled by the movement of the edges themselves, which close at an angle which is always greater than that of the friction. analogous one of that of the plates and the special form of the movable rail, may be considered as characteristic of the system, having for its object. to insure the operation in the presence of obstacles of no matter what form.

The bottom a of the box is provided with grooves Z with lateral outlets m, which communicate with the outer soil for the draining off of rain-water.

The two movable rails are connected with each other by means of a bar p.

hat I claim as my invention, and desire to secure by Letters Patent, is

1. In combination a switch, a box, a rail movable therein, wings on each side of said rail, and sheets fixed to the box under which the wings are adapted to slide, said rail and sheets having their upper surfaces flush.

2. In combination a switch, a box, a rail movable therein, wings on each side of said rail, and sheets fixed to the box under which the wings are adapted to slide, said wings being connected to the rail at an inclined plane and the edges of the fixed sheets being cut obliquely in a longitudinal direction so as to form a V-shape opening between the sheet and edge of the rail.

3. In combination in a switch, a box, a rail movable therein, a U-shape groove in said rail, said U-shape groove being modified into a V- shaped groove near the end of the rail.

In testimony whereof I h ave signed my name to this specification in the presence of two subscribing witnesses.

OTTAVIANO PACINI.

Witnesses:

' ARLIXHE MARMOCCI,

ANTONIO CAPELLANO.

This arrangement, united with the 

